Controller for finger gesture recognition and method for recognizing finger gesture
A controller for finger gesture recognition, including a griping body, a manipulating component and a sensing component, is provided. The griping body includes a head portion and a griping portion which is opposite to the head portion and includes a plurality of finger contact areas. The manipulating component is disposed on the head portion, and the sensing component includes a plurality of finger sensors which are disposed in the finger contact areas, respectively. A method for recognizing finger gesture is also provided, including steps of: receiving a signal of finger movement from the controller, wherein the signal of finger movement is generated by at least one of the finger sensors sensing that at least one of user's fingers contacts or approaches the controller; determining a finger gesture constituted by the fingers according to the signal of finger movement; and generating a signal of finger gesture corresponding to the finger gesture.
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This application is a Divisional of pending U.S. patent application Ser. No. 15/826,365, filed on Nov. 29, 2017, now U.S. Pat. No. 10,579,151, which claims priority to U.S. Patent Application No. 62/441,982 filed on Jan. 4, 2017, which is hereby incorporated by reference in its entirety.
BACKGROUND OF THE INVENTION Field of the InventionThe present invention relates to a controller for finger gesture recognition and a method for recognizing finger gesture.
Descriptions of the Related ArtIn virtual reality (VR) experiences (e.g., games or education), body movements of users may be detected by several action sensors and then synchronously expressed in stereoscopic images of virtual reality, thereby providing the users with immersive experiences in which the users feel as if they are in the virtual reality by themselves. Most of action detectors used in the VR equipments currently available detect main actions of the users, e.g., movement and turning of heads, movement and swing of hands or arms or the like.
If fine actions, e.g., actions of fingers, of the users can be further detected and synchronously expressed in the virtual images, the users can be provided with better immersive experiences. A technology for providing action sensors in a glove is available currently, and actions of fingers can be detected after the user puts on the glove. However, the user will certainly feel troublesome and hot when wearing the glove, and moreover, it is hard for the glove to suit hands of different sizes of different users because the size of the glove is fixed.
SUMMARY OF THE INVENTIONAn objective of the present invention is to provide a controller for finger gesture recognition and a method for recognizing finger gesture, which determine a finger gesture of a user by sensing whether a finger of the user touches or approaches the controller. Another objective of the present invention is that the controller and the method can suit users with hands of different sizes to determine the finger gesture thereof. Yet a further objective of the present invention is that the finger gesture of the user determined by the controller and the method may be applied to interactive applications such as the virtual reality or the like.
To achieve the aforesaid objectives, a controller provided by the present invention comprises: a griping body, comprising a head portion and a griping portion which is disposed opposite to the head portion and comprises a plurality of finger contact areas; a manipulating component, disposed on the head portion; and a sensing component, comprising a plurality of finger sensors which are disposed in the finger contact areas of the griping portion respectively.
In an embodiment, the griping body further comprises an attaching portion which includes a top end and a bottom end disposed opposite to the top end, wherein the top end connects to the head portion and/or the bottom end connects to the griping portion.
In an embodiment, the sensing component further comprises a vital sensor which is disposed on the attaching portion.
In an embodiment, the griping portion comprises a receiving area and a lid, the finger sensors are disposed in the receiving area, and the lid covers the receiving area and the finger sensors.
In an embodiment, the lid comprises a plurality of openings, and positions of the openings correspond to positions of the finger sensors respectively.
In an embodiment, each of the finger sensors comprises a proximity sensing element, a capacitive touch-sensing element, a resistive touch-sensing element, an inductive touch-sensing element, a pressure sensing element, or an optical touch-sensing element.
In an embodiment, the finger contact areas include a middle finger contact area, a ring finger contact area and a little finger contact area, each of which corresponds to at least one of the finger sensors.
In an embodiment, each of the ring finger contact area and the little finger contact area corresponds to at least two of the finger sensors.
In an embodiment, the finger contact areas further comprise an index finger contact area which corresponds to at least one of the finger sensors.
In an embodiment, the head portion further comprises a thumb contact area which corresponds to at least one of the finger sensors.
To achieve the aforesaid objectives, a method for recognizing finger gesture comprises the following steps: receiving a signal of finger movement from a controller, wherein the controller includes a plurality of finger sensors, and the signal of finger movement is generated by at least one of the finger sensors sensing that at least one of fingers of an user touches or approaches the controller; and determining a finger gesture constituted by the fingers according to the signal of finger movement to generate a signal of finger gesture corresponding to the finger gesture.
In an embodiment, the signal of finger movement is generated by at least one of the finger sensors sensing that at least one of the fingers leaves from the controller.
In an embodiment, a range of the controller that is touched by the fingers is defined according to the signal of finger movement.
In an embodiment, operation of the finger sensors outside of the range is suspended.
In an embodiment, the signal of finger movement comprises a first signal, a second signal, and a third signal which are respectively generated by one or more of the finger sensors sensing that one of a middle finger, a ring finger and a little finger of the fingers touches or approaches the controller.
In an embodiment, the signal of finger movement comprises a fourth signal which is generated by one or more of the finger sensors sensing that an index finger of the fingers touches or approaches the controller.
In an embodiment, the signal of finger movement comprises a fifth signal which is generated by one or more of the finger sensors sensing that a thumb of the fingers touches or approaches the controller.
In an embodiment, a vital signal is received from the controller, wherein the controller comprises a vital sensor, and the vital signal is generated by the vital sensor sensing a back of hand of the user.
The detailed technology and preferred embodiments implemented for the subject invention are described in the following paragraphs accompanying the appended drawings for people skilled in this field to well appreciate the features of the claimed invention.
Please refer to
The controller 10 may comprise a griping body 100, a manipulating component 200 and a sensing component 300, and technical contents of each of these elements will be described in sequence as follows.
The griping body 100 structurally comprises a head portion 110 and a griping portion 120 which is disposed opposite to the head portion 110, the manipulating component 200 is at least disposed on the head portion 110, and the sensing component 300 is at least disposed on the griping portion 120. More specifically, the head portion 110 is shorter and the griping portion 120 is longer, as measured in a first direction D1; and the head portion 110 is wider and the griping portion 120 is narrower, as measured in a second direction D2 (which is perpendicular to the first direction). Through such a size configuration, it is easy for a thumb and a first web of the user to fasten the head portion 110 and remaining four fingers to grip the griping portion 120 when the griping body 100 is griped by the user. The thumb may manipulate the manipulating component 200 on the head portion 110, the middle finger, the ring finger and the little finger may touch the griping portion 120, and the index finger may selectively manipulate the manipulating component 200 or touch the griping portion 120. Moreover, the griping body 100 does not cover the fingers of the user when it is griped by the user, so the user can grip or release the griping body 100 easily and rapidly.
The griping portion 120 further comprises a plurality of finger contact areas 122, which are areas on the external surface of the griping portion 120 that can be touched by fingers of the user when the user bends the fingers. Different users have hands (including palms and fingers) of different sizes, so positions on the external surface of the griping portion 120 that can be touched by the fingers are also different. The finger contact areas 122 may be defined as corresponding to areas that might be touched by fingers of a plurality of users instead of corresponding to the size of a hand of a single user. In this embodiment, the finger contact regions 122 may be arranged in the first direction D1 to define a strip area. Moreover, the head portion 110 may also comprise finger contact areas (not shown) to correspond to touch of the thumb and the index finger.
The manipulating component 200 is disposed on the head portion 110 so that the user inputs a control signal to the VR providing device by operating the manipulating component 200. The manipulating component 200 may comprise elements such as a button, a knob, a rocker and/or a touch panel, thereby providing the user with diversified manipulating modes. The manipulating component 200 not only can be disposed on the head portion 110, but also can be disposed on the griping portion 120 at a position outside the finger contact areas 122 (e.g., in a second embodiment shown in
The sensing component 300 may comprise a plurality of finger sensors 310 which are disposed in the finger contact areas 122 of the griping portion 120 respectively (which may also be disposed in the finger contact areas of the head portion 110). Each of the finger contact areas 122 may be provided with one or more finger sensors 310, so the number of the finger sensors 310 is not less than the number of the finger contact areas 122. The finger sensors 310 may sense that the finger touches, approaches or leaves from the finger contact areas 122, thereby outputting signals of finger movement having different contents. Each of the finger sensors 310 comprises one or a combination of a proximity sensing element, a capacitive touch-sensing element, a resistive touch-sensing element, an inductive touch-sensing element, a pressure sensing element, and an optical touch-sensing element. This embodiment takes a proximity sensing element using infrared rays as an example. Moreover, the finger sensors 310 may also sense a pressing force of a finger, thereby outputting a signal of finger movement that includes force information.
The griping portion 120 optionally comprises a receiving area 124 and a lid 126, the receiving area 124 may be a groove, the finger sensors 310 may be disposed in the receiving area 124, and the lid 126 is disposed on the receiving area 124 to cover the receiving area 124 and the finger sensors 310. The property and structure of the lid 126 also vary depending on the type of the finger sensors 310. For example, when the finger sensor 310 is a proximity sensing element, the lid 126 may be non-opaque (may be semi-transparent) so as not to block infrared rays. For example, when the finger sensor 310 is a capacitive touch-sensing element, the lid 126 may be a part (a sensing layer) of the capacitive touch-sensing element. Through the arrangement of the lid 126, the controller 10 may have a clean and smooth appearance, but it is not limited thereto. Additionally, the lid 126 may also be provided with a plurality of openings (not shown) depending on technical characteristics of the finger sensors 310, and the finger sensors 310 may be partially received in the openings (i.e., partially protruding outside the openings). In other words, the positions of the openings correspond to the positions of the finger sensors 310 so that the finger sensors 310 can sense movement of the fingers through the openings. Accordingly, in some operations, the finger sensors 310 may be touched by the fingers to directly detect the movement of the fingers and generate corresponding signals.
Referring to
Referring to
Referring to
Moreover, the sensing component 300 may further comprise a vital sensor 320 which is disposed on the attaching portion 130 so as to monitor vital data such as the pulse and the body temperature of the user by sensing the back of the hand of the user when the user is griping the griping body 100, and then the vital data is transmitted to the VR providing device. Accordingly, the vital responses of the user can also be reflected in the virtual reality in real time, thereby improving the entertainment of the operation.
Referring to
As shown in
As can be known from the above descriptions, the controller 10 may dynamically define the positions of the finger contact areas 122 and/or the corresponding finger sensors 310 depending on different sizes of the hands of the users. On the other hand, sensing ranges of finger sensors 310 in two adjacent finger contact areas 122 may not overlap with each other, but the same finger may be defined respectively by the adjacent finger sensors 310. Therefore, the sensing range of each of the finger sensors 310 is preferably smaller. Taking the case where the finger sensor 310 is an infrared proximity sensing element as an example, the sensing range of the finger sensor 310 is preferably within ±10 degrees of the optical axis.
As shown in
After the middle finger contact area 122a, the ring finger contact area 122b (122b′), the little finger contact area 122c (122c′), the index finger contact area 122d and the thumb finger contact area 122e have been defined according to different sizes of the hands, the finger sensors 310 within these contact areas may sense movement of the corresponding fingers (i.e., whether the fingers touch, approach or leave from the griping body 100).
Please refer to
More specifically, the sensing component 300 comprises a larger number of finger sensors 310′, and these finger sensors 310′ are arranged more densely. Referring to
What described above are technical contents of the controller for finger gesture recognition according to the preferred embodiments of the present invention, and a method for recognizing finger gesture according to another preferred embodiment of the present invention will be described hereinafter. The method for recognizing finger gesture may be implemented by the controller of the aforesaid preferred embodiments (or other controllers with the substantially same technical contents). Therefore, reference may be made to the technical contents of the controller for the technical contents of the method, and vice versa, and the repeated part therebetween will be omitted or simplified.
The method for recognizing finger gesture may be executed by a processor, e.g., executed by the processor 101 of the controller 10 itself (as shown in
Referring to
Moreover, the signal of finger movement may also be generated by at least one of the finger sensors 310 sensing that the finger of the user leaves from the griping body 100 of the controller 10. Further speaking, when the finger of the user leaves from the griping body 100, the finger sensor 310 may also generate a signal of the corresponding content, by which the time when the finger touches the griping body 100 can be determined in subsequent steps.
The signal of finger movement may be defined to comprise a first signal, a second signal, and a third signal which are respectively generated by one or more of the finger sensors 310 sensing that one of a middle finger, a ring finger and a little finger of the user touches, approaches or leaves from the controller 10. For example, the finger sensor 310 in the middle finger contact area 122a (as shown in
Moreover, the user may make all of the middle finger, the ring finger and the little finger thereof touch the griping body 100, the middle finger, the ring finger and the little finger touch different positions of the griping body 100, and one or more finger sensors 310 at each of the positions generate a signal so that the middle finger contact area 122a, the ring finger contact area 122b (122b′) and the little finger contact area 122c (122c′) corresponding to the size of the hand of the user are defined, as shown in
Referring to
The VR providing device may receive and apply the signal 501 of finger gesture to enable a virtual role in the virtual reality or an video game to make various finger gestures such as grabbing, throwing and picking up, griping and releasing, hitting a ball, playing the piano, shooting, boxing, finger-guessing or the like, and the VR providing device may also display the corresponding finger gesture images 503 synchronously.
In other implementations, the method for recognizing finger gesture may further comprise the following step: defining, by the processor, a range of the controller that is touched by the fingers according to the signal of finger movement after the signal of finger movement is received by the processor. For example, as shown in
After the range 600 is defined, the method for recognizing finger gesture may further comprise: suspending operation of the finger sensors 310 outside of the range 600 (600′). That is, because the hand is smaller, the finger sensors 310 outside of the range 600 cannot be touched by the fingers (or is only touched by the fingers incidentally), and thus suspending operation of the finger sensors 310 outside of the range 600 (600′) can save electrical energy and reduce errors in finger gesture determining operations.
Moreover, the method for recognizing finger gesture may further comprise: receiving a vital signal from the controller 10, wherein the vital signal is generated by the vital sensor 320 (as shown in
The above disclosure is related to the detailed technical contents and inventive features thereof. People skilled in this field may proceed with a variety of modifications and replacements based on the disclosures and suggestions of the invention as described without departing from the characteristics thereof. Nevertheless, although such modifications and replacements are not fully disclosed in the above descriptions, they have substantially been covered in the following claims as appended.
Claims
1. A controller for finger gesture recognition, comprising:
- a griping body, comprising a head portion and a griping portion which is disposed opposite to the head portion and comprises a plurality of finger contact areas, wherein the head portion is shorter and wider than the griping portion;
- a manipulating component, disposed on the head portion; and
- a sensing component, comprising a plurality of finger sensors which are disposed in the finger contact areas, respectively;
- wherein a finger sensor outside a range of the griping body that is touched by user's fingers is configured to suspend operation thereof.
2. The controller according to claim 1, wherein the griping body further comprises an attaching portion which includes a top end and a bottom end disposed opposite to the top end, wherein the top end connects to the head portion and/or the bottom end connects to the griping portion.
3. The controller according to claim 2, wherein the sensing component further comprises a vital sensor which is disposed on the attaching portion.
4. The controller according to claim 1, wherein the griping portion comprises a receiving area and a lid, the finger sensors are disposed in the receiving area, and the lid covers the receiving area and the finger sensors.
5. The controller according to claim 4, wherein the lid is semi-transparent.
6. The controller according to claim 1, wherein the griping portion comprises a receiving area and a lid, the finger sensors are disposed in the receiving area, and the lid comprises a plurality of openings, positions of which correspond to positions of the finger sensors, respectively.
7. The controller according to claim 1, wherein each of the finger sensors comprises a proximity sensing element, a pressure sensing element, a capacitive touch-sensing element, a resistive touch-sensing element, an inductive touch-sensing element or an optical touch-sensing element.
8. The controller according to claim 1, wherein the finger contact areas include a middle finger contact area, a ring finger contact area and a little finger contact area, each of which corresponds to at least one of the finger sensors.
9. The controller according to claim 8, wherein each of the ring finger contact area and the little finger contact area corresponds to at least two of the finger sensors.
10. The controller according to claim 1, wherein the finger contact areas further comprise an index finger contact area which corresponds to at least one of the finger sensors.
11. The controller according to claim 8, wherein the head portion further comprises a thumb contact area, one of the finger sensors is disposed in the thumb contact area.
12. The controller according to claim 1, wherein the finger sensors are arranged densely.
13. The controller according to claim 1, wherein each of the finger contact areas corresponds to more than one of the finger sensors.
14. The controller according to claim 1, wherein each of the finger sensors has a sensing range within ±10 degrees.
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Type: Grant
Filed: Jan 8, 2020
Date of Patent: May 4, 2021
Patent Publication Number: 20200142500
Assignee: HTC CORPORATION (Taoyuan)
Inventors: Wan-Hsieh Liu (Taoyuan), Chou-Wei Wu (Taoyuan), Wei-Gang Tsai (Taoyuan), Chih-Ting Chen (Taoyuan)
Primary Examiner: Joseph R Haley
Application Number: 16/737,470
International Classification: G06F 3/01 (20060101); A63F 13/218 (20140101); A63F 13/212 (20140101); A63F 13/245 (20140101); A63F 13/28 (20140101); A63F 13/42 (20140101); A63F 13/214 (20140101);